| Salix viminalis x caprea = S. x smithiana | GB, VC20 Hertfordshire, Ickleford | Joseph Edward Little | Joseph Edward Little | 2/11/1922 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC20 Hertfordshire, Ickleford | Joseph Edward Little | Botanical Exchange Club of The British Isles | 16/5/1924 | MANCH |
| Salix viminalis x caprea = S. x smithiana | GB, VC20 Hertfordshire, Ickleford | Joseph Edward Little | Watson Botanical Exchange Club Joseph Edward Little | 18/4/1921 16/5/1921 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC21 Middlesex, Finchley GB, VC21 Middlesex, Hendon | | IRGMA | 10/1883 5/4/1884 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC26 West Suffolk, Market Weston | Edward Francis Linton | IRGMA | 11/4/1883 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC27 East Norfolk, Sprowston | | IRGMA | 22/9/1883 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC26 West Suffolk, Market Weston GB, VC27 East Norfolk, Sprowston Cultivated | Edward Francis Linton | IRGMA | 4/5/1887 29/9/1887 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC29 Cambridgeshire, Bassingbourn | Peter Derek Sell | | 30/12/1967 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC29 Cambridgeshire, Bassingbourn | Peter Derek Sell | | 26/4/1987 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC29 Cambridgeshire, Bourn | Peter Derek Sell | | 11/7/1986 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC29 Cambridgeshire, Cambridge | Stuart Max Walters | | 24/6/1955 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC29 Cambridgeshire, Cambridge | Edmund Frederic Warburg | | 1/5/1932 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC29 Cambridgeshire, Cambridge | Edmund Frederick Warburg | | 1/5/1932 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC29 Cambridgeshire, Fulbourn | Thomas Gaskell Tutin | | 5/1932 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC29 Cambridgeshire, Sawston | A C Leslie | | 30/5/1987 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC29 Cambridgeshire, Trumpington | Leicester Darwall | | 8/4/1834 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC30 Bedfordshire, Turvey | | IRGMA | 24/4/1884 11/9/1884 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC31 Huntingdonshire, Sawtry | Arthur Bennett | IRGMA | 20/4/1885 3/9/1885 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC31 Huntingdonshire, Sawtry | | IRGMA | 20/4/1885 3/9/1885 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC32 Northamptonshire, Wadenhoe | Augustin Ley | Augustin Ley | 26/7/1910 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC34 West Gloucestershire, Westerleigh | Ida Mary Roper | Watson Botanical Exchange Club Ida Mary Roper | 20/4/1921 17/8/1921 | SLBI |
| Salix viminalis x caprea = S. x smithiana | GB, VC34 West Gloucestershire, Westerleigh | Ida Mary Roper | Watson Botanical Exchange Club Ida Mary Roper | 20/4/1921 17/8/1921 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC35 Monmouthshire, New Inn | Augustin Ley | Augustin Ley | 5/4/1881 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC35 Monmouthshire, New Inn | Augustin Ley | Augustin Ley | 10/9/1881 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC35 Monmouthshire, Skenfrith | Augustin Ley | Augustin Ley | 10/10/1883 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Backney | Augustin Ley | Augustin Ley | 9/9/1887 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Bodenham | Augustin Ley | Augustin Ley | 16/6/1886 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Capler to Fawley Cross | Augustin Ley | Augustin Ley | | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Colwall | | Augustin Ley | 18/7/1887 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Crow Hill | Augustin Ley | Augustin Ley | 3/8/1887 3/4/1888 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Dinmore | Augustin Ley | Augustin Ley | 16/4/1887 11/6/1887 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Dinmore | Augustin Ley | Augustin Ley | 16/4/1887 11/6/1887 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Dinmore | Augustin Ley | Augustin Ley | 16/4/1887 11/6/1887 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Dorstone | Augustin Ley | Augustin Ley | | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Fawley Chapel | Augustin Ley | Augustin Ley | 6/7/1886 18/4/1887 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Fawley Chapel | Augustin Ley | Augustin Ley | 18/4/1887 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Fawley Chapel | Augustin Ley | Augustin Ley | 22/6/1887 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Foy | Augustin Ley | Augustin Ley | 18/4/1887 22/6/1887 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Foy | Augustin Ley | Augustin Ley | 18/4/1887 22/6/1887 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Foy | Augustin Ley | Augustin Ley | 15/10/1900 | BIRM |